Cement-worker&#39;s tool.



J. T. HARROP. UEMENT WORKERS TOOL.- APPLICATION TILED FEB. 10 1909.

930,374. Patented Aug. 10, 1909.

ATTORNEYS.

Aunkiw. LEMMA! 00. momumouwuzna. WASHINGTON, n. c.

JOHN T. HARROP, OF GARFIELD, NEW JERSEY.

CEMENT-WORKERS TOOL.

Specification of Letters Patent.

Patented Aug. 10, 1909.

Application filed February 10, 1909. Serial No. 477,171.

To all whom it may concern:

Be it known that I, JOHN T. HARnoP, a citizen of the United States, andresiding at Garfield, in the county of Bergen and State 5 of New Jersey,have invented certain new and useful Improvements in Cement-forkersTools, of which the following is a specification, such as will enablethose skilled in the art to which it appertains to make and use thesame.

This invention relates to tools for use in jointing or creasing cementpavements; and the object thereof is to provide an improved tool of thisclass the construction'of which is such as to facilitate the use thereofin connection with a straight edge or similar device in connection withwhich the tool is used in creasing or jointing pavements of this class;and with this object in view the invention consists in a device of theclass specified constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawingforms a part, in which the separate partsof my improvement are des ignated by suitable reference characters ineach of the views, and in which;

Figure 1 is a side view of my improved tool, F'g. 2 a section on theline 2-2 of Fig. 1, and ;-F ig. 3 a section on the line 3-3 of Fig. 1.

In the practice of my invention I provide a tool of the class specifiedcomprising a base plate a which is oblong and rectangular in form andthe ends of which are curved upwardly in the usual manner as shown at aand said base plate is provided centrally and longitudinally of thebottom thereof with the usual creaser a which is triangular in crosssection and the ends of which are curved upwardly to correspond with theends of the plate a as shown at a.

The base plate a is provided transversely of the opposite end portionsthereof and adj acent to said end portions but inwardly of the ends athereof with transverse raised members I) which extend above the top ofthe end portions a of the base plate a and which are intended to formguides which bear on the face of a straight edge or similar device inthe operation of the tool as hereinafter described, and the ends of theraised guides 11 are flush with the side edges of the 5 base plate a andinwardly, of said raised guides are handle attaching blocks a, all

these parts being, in practice, cast from suitable metal in the usualmanner, and in the form of construction shown, the space between thetransverse guides Z) and the upwardly curved ends a of the plate a arefilled in centrally of the plate a as shown at d, but this feature ofconstruction is not an essential one and may or may not be employed.

The handle e consists of a yoke-shaped member comprising a bottom plate6 and upwardly directed side arms 6 between which the handle proper issecured as shown at e, and the bottom plate 6 of the yoke-shaped handlee is secured to the handle attaching blocks 0 by means of screwsf. W

It is customary, in practice, in creasing or jointing a cement pavementto use a straight edge which is usually not more than three-eighths ofan inch or half an inch in thickness, and. unless the straight edge isheld in proper position at all times, which operation is sometimesdifficult, the adjacent side edge of the plate a will slide under thesame and this interferes, as will be understood, with the operation ofthe tool, but with my improvement the ends of the transverse guides I)will prevent the side edges of the base plate a from passing under thestraight edge and will hold the tool in proper position at all times,either the side edge of the base plate or the end portions of thetransverse guides 6 serving to accomplish this result.

My invention is not limited to the exact position or form of thetransverse guides 11 as shown and described, all that is necessary inthis connection being that the tool be provided with guides which arearranged vertically or substantially so and the outer edges which areflush with the outer side faces of the base plate a and which extendsufficiently above the plane of the said base plate to form guides forthe tool when operated in connection with a straight edge as hereindescribed; and various changes in and modifications of the constructiondescribed may be made, within the scope of the appended claim, withoutdeparting from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is c- A tool of the class described comprisinga base plate the bottom of which is provided with a longitudinal creaserand the ends of which are curved upwardly, said base plate ln testirnonythat I claim the foregoing as being also provided on the top thereofwith my invention I have signed my name in 10 raised handle attachingdevices having latpresence of the subscribing witnesses this 8th erallydirected extensions the end portions-0f day of February 1909 1' whichterminate in the plane of the sides of J OHN T. HARROP.

the base plate and form in connection with Witnesses: the upwardlycurved end of said base plate 1 C. E. MULREANY, guides for the tool.HARRY R. CANFIELD.

